It had to be done! These two lovely ladies are so similar that they could be sisters. They are both short, blonde and smokin' hot but the connection between them goes deeper than that.

Kristen & Hayden have known each other since Hayden was a lil' kid and they finally reunited when Kristen joined the cast of Heroes. They are friends off screen and also known for loving hockey & animals.

Here's an excerpt from their TVGuide interview:

Quote

TVGuide.com: Forget the future, let's discuss the past. You both knew each other as young actors in New York, right?Panettiere: She used to change my diapers.Bell: I did not change Hayden's diapers!Panettiere: We met when I was 8.Bell: And I was… [Hesitates]… well, I don't want to say how old I was. [Laughs] We were both with the same agency. Hayden doesn't remember this but I happened to be in the office the day she booked Remember the Titans and she came in with her mom to celebrate. I was there having a meeting and all the agents were saying, ‘We knew it, Hayden! We knew you'd get the movie!" She had these long beautiful blonde curls.Panettiere: [Grimacing] I know, I know…. Don't rub it in.Bell: She was adorable.Panettiere: And I went to see Kristen on Broadway in Tom Sawyer. I remember that very clearly.Bell: Did you want to grow up to be me? Do you still want to?[Panettiere pretends she didn't hear the question] No, the truth is, Hayden was a very big deal already back then. She was also on Guiding Light at that point. I was just doing Broadway Schmroadway.

TVGuide.com: [To Bell] Did you ever want to get on a soap opera?Bell: No. Musical theater was my be-all-end-all. That was my ultimate dream.Panettiere: And then her dream was crushed — now she's only on Heroes.Bell: Maybe Elle could sing.Panettiere: I have always said there should be a musical episode: There is a lot of singing on the set.Bell: Everybody would try to outdo each other! It would be a total catfight. Jack Coleman sings all day long. Sendhil sings. One day in the car, Masi Oka [Hiro], Zach Quinto [Sylar] and I decided to start a band. It could be like the Heroes all put on a talent show! You know, Hayden and I have been saying for a long time that we wanted to work together, so it's kinda fun that we now get to be rough and tough because we're not friends.Panettiere: Not friends on the show, she means. We're such good friends in real life that we carpooled to the set today.Bell: I drove and we got so lost we wound up in a Lowe's parking lot somewhere.Panettiere: Yeah, and she wanted to drop me off there.Bell: I said, "OK, Hayden, you're here, get out!"Panettiere: I was like, "Kristen, we're supposed to be shooting at San Pedro beach today, not Santa Monica beach!"Bell: I had us in the wrong place. We had like 10 minutes to get to the set and we were still 45 minutes away.Panettiere: Now it turns out she's working here till sundown and I'm out after just a couple more shots. So I'm stuck here for hours with no way to get home. I didn't even bring a book. This wasn't the best plan.Bell: I'm sure everyone would love to think I sabotaged her, but it ain't the truth. But we do enjoy sabotaging each other on screen, if we can keep a straight face.Panettiere: Our scene today was so hard. I was trying not to laugh. At least Kristen gets to have a smirk on her face. But I have to restrain myself.

Who is your favorite and why? This time I added "I love them both" option because I just can't choose between them

Had to go with Hayden on this one, mostly because I know/seen more of Hayden's work than Kristen. When I saw Kristen on Heroes, I thought she was familiar but couldn't pinpoint from where exactly. But Hayden was pretty much a dead giveaway since she still has that babyface from back then.

For the longest time I never cared much for these two. I had seen them in stuff before and thought they were cute, but never went lookin' for 'em. Then recently they started growing on me. I think Hayden is the hotter of the two. It kinda surprised me that I loved so many other girls with a body like hers, but something about Hayden never did it for me. She's in the running for my vote in the hottest actresses this year (I STILL haven't made my final decisions yet), but Kristen wins this poll for me. I loved her in Forgetting Sarah Marshall. She had me crackin' up when she was having sex with Russell Brand and when she did her impersonation of him.